I for some reason have it in my head that I want to combine a cowl visor and a sun visor to attempt an effective windshield angle reduction without the whole cut, weld, re-glue hassle of actually moving the windshield.
Maybe something like this
http://www.sarona.com/media/images/4..._93_94_95_.jpg with an open top?
This would be on my w126 mercedes, not a full size van fwiw. My hood is longer which in my head would give me more room to work that angle modification.